The accordion shutter consists of
interconnected extruded aluminum panels that move horizontally between
an upper and lower track. The upper track, called a header, is wide
enough to accommodate the wheel and carriage assemblies that are
attached to the top of every other panel. This allows for ease of
movement when opening and closing the shutter. The lower track, called a
sill, guides and secures the bottom of each panel.
The accordion shutter is manually
operated, which means that you must have access to the shutter so you
can open or close it by hand. This presents no obstacle if the shutter
is mounted in front of glass doors or windows on the first floor or
accessible from a balcony. But if mounted over an inaccessible window,
operation would require the window to be opened and the screen removed
in order to open or close the shutter.
The accordion shutter can be designed
to open or close as one unit, moving left to right or right to left. For
larger areas it can have a center opening, so that half the shutter
would move to the right and the other half to the left. Radius corners
are also available.